WASHINGTON -- Volkswagen of America Inc. vows to return the Touareg's V-10 diesel engine to the United States for the 2006 model year.
First, though, the company must persuade the EPA.
VW introduced the heavily promoted V-10 in last year, but it dropped the diesel from its engine lineup for 2005. The company could not certify that the engine would meet federal standards for tailpipe emissions.
For 2005, Volkswagen proposed injecting a compound called ferrocene into the V-10's exhaust. That would help the particulate filter work properly, the company said.
But ferrocene is not registered for use in the United States, the EPA says.
VW insists it will find an acceptable alternative.
"We are confident this flagship product will be back in the U.S. market for 2006," said David Geanacopoulos, VWoA's director of industry-government relations.
The same particulate issue does not affect the company's smaller diesel engines in other models, he says.